© 2026 Nanjing Finechem Holdings Co., Ltd,
All Right Reserved
Product Name: Nitrite Standard Solution
CAS Number: 14797-65-0
Product Use: Laboratory chemical, analytical reagent
Manufacturer Name: Refer to supplier label or procurement source
Emergency Contact: Local poison center or manufacturer emergency number
Chemical Formula: NaNO2 (sodium nitrite in solution form)
Hazard Class: Oxidizing agent, acute toxicity (oral, inhalation, dermal), environmental hazard for aquatic life
GHS Pictograms: Skull and crossbones, exclamation mark, environment, oxidizer
Signal Word: Danger
Hazard Statements: Toxic if swallowed, may cause allergic skin reaction, suspected of causing cancer, causes damage to organs through prolonged exposure, harmful to aquatic life
Precautionary Statements: Avoid inhalation, avoid skin and eye contact, do not eat or drink while using
Chemical Name: Sodium Nitrite
Concentration: Usually 1,000 mg/L in water, specific concentration found on product label
Other Ingredients: Deionized water
Synonyms: Nitrous acid sodium salt, Nitrite
Inhalation: Remove person to fresh air, seek medical attention for breathing discomfort
Skin Contact: Rinse with soap and plenty of water for several minutes, remove contaminated clothing, consult medical help for irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, seek physician advice if symptoms persist
Ingestion: Do not induce vomiting, rinse mouth with water, seek immediate medical treatment, risk of methemoglobinemia
Symptoms of Exposure: Respiratory distress, cyanosis, dizziness, headache, low blood pressure, rapid heart rate, confusion
Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, foam (avoid dry combustibles due to oxidizing properties)
Special Hazards: Releases toxic fumes of nitrogen oxides and sodium oxide upon heating
Protective Equipment: Full protective clothing, self-contained breathing apparatus
Advice for Firefighters: Approach fire from upwind, prevent chemical runoff into drains and waterways
Personal Precautions: Evacuate unnecessary personnel, ventilate area, avoid breathing dust, vapor, or mist, wear gloves and goggles
Environmental Precautions: Prevent entry to sewers, drains, surface and ground waters, keep material out of soil
Cleanup Methods: Absorb spillage with inert material (sand, vermiculite), place in container for disposal, wash spill area with water, dispose of as hazardous waste
Handling: Avoid creating dust or fumes, handle in well-ventilated area, use personal protection, refrain from drinking, eating, or smoking while using
Storage: Store in tightly closed container, dry, cool, well-ventilated area, away from incompatible materials such as reducing agents, acids, organic materials, combustible substances
Incompatibilities: Strong acids, ammonium salts, reducing agents, metals, organic materials
Exposure Limits: OSHA PEL: none established; ACGIH TLV: 10 mg/m³ (as sodium nitrite, inhalable fraction and vapor, 8-hr TWA)
Engineering Controls: Local exhaust ventilation, closed system handling recommended
Personal Protective Equipment: Nitrile gloves, splash goggles, lab coat, NIOSH-approved respirator if risk of inhalation
Hygiene Measures: Wash hands after handling, remove contaminated clothing, avoid contact with skin, eyes, and clothing
Appearance: Clear, colorless to pale yellow solution
Odor: Odorless
pH: Usually 7-9 (solution dependent)
Melting Point: Not applicable (aqueous solution)
Boiling Point: Approximately 100°C
Flash Point: Not combustible
Solubility: Completely soluble in water
Specific Gravity: Approx. 1.01 (for 1,000 mg/L standard)
Vapor Pressure: Negligible
Oxidizing Properties: Strong oxidizer
Chemical Stability: Stable at room temperature and normal conditions of use
Conditions to Avoid: Heat, sunlight, contact with organic materials, acids, reducing agents
Hazardous Decomposition Products: Nitrogen oxides, sodium oxides
Reactivity: May react violently with reducing chemicals and combustible materials
Acute Toxicity: Oral LD50 (rat) 85 mg/kg (for sodium nitrite)
Target Organs: Blood, cardiovascular system
Health Effects: Methemoglobinemia (reduced oxygen transport in blood), hypotension, dizziness, cyanosis, headache, nausea, vomiting, respiratory failure at high doses
Chronic Effects: Prolonged exposure increases risk of cancer, potential reproductive effects (evidence in animals not conclusive in humans)
Routes of Exposure: Inhalation, ingestion, skin, and eye contact
Toxicity to Aquatic Life: Very toxic, LC50 for fish (Oncorhynchus mykiss) 0.19 mg/L (96h)
Persistence and Degradability: Nitrite ion undergoes oxidation to nitrate or reduction to nitrogen gas under various environmental conditions
Bioaccumulative Potential: Low (readily bioavailable but does not persist in organisms)
Mobility in Soil: High, can leach to groundwater
Other Adverse Effects: May cause long-term effects in aquatic systems, eutrophication risk
Waste Handling: Treat as hazardous waste, consult local regulations for disposal practices
Disposal Methods: Do not pour into drains or waterways, advisable to neutralize and dispose via licensed chemical waste contractor
Container Disposal: Rinse with copious water, destroy by incineration or as regulated by authorities
UN Number: 1500
UN Proper Shipping Name: Sodium Nitrite Solution
Transport Hazard Class: 5.1 (oxidizing substance)
Packing Group: III
Labels Required: Oxidizer, Toxic
Special Precautions: Minimize movement, segregate from fuels and combustible materials, ensure secondary containment for bulk transport
OSHA Status: Hazardous by definition
SARA Title III: Section 313 listed toxic chemical
California Proposition 65: Sodium nitrite is not currently listed as a known carcinogen but mixtures can form carcinogenic nitrosamines
TSCA Inventory: Listed
WHMIS Classification (Canada): Class D-1-B (Toxic material causing immediate and serious toxic effects), Class C (Oxidizing material)
Other Information: Review national and local regulations for worker protection, labeling, and health surveillance requirements
